Sapphire's Durability Put to the Test Head-to-Head Against Gorilla Glass

Discussion in ' News Discussion' started by MacRumors, Aug 29, 2014.

  1. macrumors bot


    Apr 12, 2001

    Repair experts at uBreakiFix have examined the impact resistance, scratch resistance and strength of sapphire glass in a series of tests that were published today. The tests were designed to determine whether sapphire is suitable for use as a smartphone display.

    The repair technicians conducted three different tests -- a scratch resistance comparison using a tungsten carbide drill bit, a drop test with the sapphire display of the newly released Kyocera Brigadier, and a a four-point bend test to compare the failure stress and strain of sapphire glass with that of Gorilla Glass.

    The technicians conclude that sapphire does not necessarily offer any advantage over Gorilla Glass, as the material's superior scratch resistance and strength is offset by its low impact resistance. Phone manufacturers that include a sapphire display may choose to employ other protective measures such as a raised bezel to help protect the phone during impact with other surfaces.

    Apple is partnering with GT Advanced Technologies to produce sapphire for use in future products. The exact details on how Apple will use the material is not known, but the company is rumored to be using sapphire as a display cover in future iPhone models and possibly its iWatch wearable product.

    Article Link: Sapphire's Durability Put to the Test Head-to-Head Against Gorilla Glass
  2. macrumors 68000


    Jan 30, 2008
    Interesting - sapphire shattering from a 3 foot drop.

    How will the rumoured iWatch face hold up if I'm wearing it during sports and it takes a knock?
  3. macrumors 68000


    Oct 28, 2011
    Most top end watches are made from saphire and they almost never smash


    I thought they tested the earlier leaks of the screens and found it not to be pure saphire so had best of both worlds
  4. macrumors member

    Feb 19, 2014
    Ah Morons

    These guys go on and on about sapphire as a screen, they just keep forgetting that Sapphire has many other uses. It is possible that apple may be on its way to build a new RF chip for there phones , since Silicon on Sapphire Chips have better insulation and are extremely good for RF chips and equipments.

    Sapphire has uses in camera lens and these morons are still talking about the strength of sapphire as a screen glass.

    I am sure apple will surprise them with sapphire totally different usage.
  5. macrumors 6502

    Jun 3, 2008
    Apple has patents on tempering sapphire, chemically and with lasers, which would make it much more impact resistant and less brittle. They are testing with regular sapphire. That would be a fair test if they compared it with regular glass instead of GG.
  6. macrumors 68020


    Dec 9, 2008
    Here's to hoping the distribution of weight on impact is different enough in the iWatch to prevent it from being anywhere near as shatter-prone as the smartphone they tested.
  7. macrumors newbie

    Aug 29, 2014
    Personally I'd rather have it be more scratch resistant than impact resistant. I'm also going to have a case on my phone, which should help in drops, but the screen will always be susceptible to scratches unless you throw on an annoying screen shield.
  8. macrumors member

    Aug 2, 2011
    Brisbane, Australia
    Surely Apple will combine the sapphire with some other material though, right?
  9. macrumors 68040

    Jan 8, 2013
    Yes with melting you can combine materials and voila ! something better
  10. macrumors member

    Feb 19, 2014
    Bogus Rumours

    I feel apple will surprise all by coming up with a totally new usage of sapphire like building silicon on sapphire chips, i seriously hate this ******** comparing sapphire with gorilla glass. Plus the assumption that apple will use stock sapphire without any treatment.
  11. macrumors 6502a

    Oct 21, 2005
    I've had my iPhone 5 for 2 years, no screen protector and I don't have a single scratch. I don't care about it being more scratch resistant because other than having a pocket full of sand I won't scratch this screen. But I do fear I could break the screen by dropping it.
  12. macrumors 6502a

    Dec 19, 2011
  13. macrumors 65816


    Jun 5, 2013
  14. macrumors 601


    Oct 1, 2010
    Givith and taketh away...

    Hopefully Apple dealt with the low impact issue.

    I can't imagine the press if iPhone 6 screens break with the most common fall for cellphones.
  15. macrumors 604


    Jun 30, 2007
    I shattered my Home button (and screen) on my 5S.
  16. macrumors 604


    Feb 23, 2010
    Yes, as they have a ton of metal around them, the Glass is often below the surface of the surround, it's a far far smaller piece of glass, and the glass it probably a lot thicker than the thinness of a phone screen.
  17. macrumors 6502


    Oct 2, 2002
    Elm Grove, LA
    LOL ... Best comment yet ;)

    BTW, is this Larry?
  18. macrumors regular

    Feb 25, 2012
    I'm willing to bet that if Apple is investing over $500M in GT Advanced for sapphire, they have a plan to make it durable enough to survive a 3-foot drop. It doesn't matter how scratch resistant your screen is if it's shattered lol.
  19. macrumors 6502a

    Apr 23, 2012
    Please... stop mentioning the names of any of those stupid locked carrier-exclusive phones. I'm fed up. Despicable.
  20. macrumors 68040

    cocky jeremy

    Jul 12, 2008
    Huntington, WV
    Who cares about impact tests? Just hold onto your phone and don't drop it. People act like it's rocket science. JUST HOLD ONTO IT!! :rolleyes:
  21. macrumors member


    Jul 7, 2011
    I don't think we learned anything new here, but perhaps the obvious needed to be pointed out.

    Presumably if you have a solid case that has a lip over the screen, that will do a lot to prevent breakage and the sapphire will be very unlikely to get scratched.

    I guess if you end up with a sapphire glass cover over the display you'll definitely want to load that sucker into a case.
  22. macrumors 68040

    Jan 8, 2013
    They have a factory so they have their own melting process. So they can at very high temperature a compose between sapphire and some other material
  23. macrumors 601


    Jan 10, 2005
    iPhone 4S: 3 years without cover, 0 scratches on the screen.
  24. Editor emeritus


    Jul 10, 2003
    Falls Church, VA
    This is the most common "injury" to smartphone screens. In my opinion, despite the hype, saphire isn't a good choice. Maybe for some kind of scratch-resistant coating, but not for the entire display.
  25. macrumors 6502

    Oct 25, 2007
    Left Coast
    Many watches currently use sapphire. I am under the impression that they offset the impact risk by making the glass much thicker, hence stronger. Something they cannot do with the iPhone.

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